Which statement best distinguishes irṣād from mere rhyme?

Murāʿāt al-Naẓīr, Corresponding Endings, Irṣād and Mushākalah

• Irṣād needs only general fitness, not anticipation
• Irṣād requires opposed final words
• Irṣād uses prior meaning to prepare the ending
• Irṣād always requires repetition, unlike rhyme